Duplicating machine



Jam i935 .J. .1. FLANIGAN DUPLICATI NG MACHINE Filed Feb. 5, 1932 5Sheets-Sheet l fifg/zentor:

Jan. 15, 1935. J. J. FLANIGAN 1,988,272

I DUPLICATING. MACHINE Filed Feb 3, 1932 5 Sheets-Sheet 2 Jan. 15, 1935.J. J. FLAMGAN DUPLICATING' MACHINE Filed Feb. 5, 1952 5 Sheets-Shet s au. m y 1 1 I l N 0- a n. Yk & E n mm o m i N I fl \ww R hm. w. om,

Jan. 15, 1935. J, J. FLANIGAN DUPLICATING MACHINE Filed Feb. 5, 1952 5Sheets-Sheet 4 5 Sheets-Sheet 5 x llww. Q A n Jan. 15, 1935. J. J.FLANIGAN DUPLICATING MACHINE Filed Feb. 3, 1952 employ a band of asurfaces after Patented Jan. 15, 1935 UNirso STATES 1,988,272DUPLICATING MACHINE John J. Flanigan, Oak Park, 111., assignor to Vivid,

Incorporated, Illinois Chicago, 111., a corporation of ApplicationFebruary 3, 1932, Serial No. 590,619 19 Claims. ,(Cl. 101- 133) Thisinvention relates toduplicating machines of the kind. operating on thehectograph principle.

I-Iectograph duplicating machines commonly gelatinous substance which iswound onto a spindle that is mounted at one end of the machine. The bandis stretched across the bed of the machine to provide an impressionsurface and after successive portions of the band have been used toprovide impression surfaces, the band is wound on a take-up spindle atthe other end of the machine. The practice heretofore has been to mountthe sup-v ply roll spindle at the rear of the machine and toprovide thetake-up spindle at the front of the machine. Prior to use the gelatinband is moistened and this has been done by providing a sponge whichis-used manually to apply-moisture to the band as it is unwound from thesupply roll spindle and wound onto the take-up roll spindle. After theband has been moistened and wound upon the take-up roll spindle, thespindles are removed from the machine and interchanged. Automaticmoistening devices have been provided which operate on the bandtomoisten it as it is unwound from the supply roll spindle and wound ontothe take-up roll spindle. At the end of this moistening operation, theband is wound onthe take-up roll spindle and it is necessary that it berewound on the supply roll spindle and after this has been donesuccessive portions of the band are withdrawn from the take-up rollspindle and positioned over the bed to provide impression which the bandis wound onto the take-up roll spindle. When the band is moistenedmanually or by an automatic moistening device in the above describedarrangement, it is necessary to either interchange the spindles or torewind the'band because the sup-- ply roll spindle is mounted at therear of the machine and the take-up roll spindle is-mounted at the frontof the machine. It is'therefore the salient object of my invention toprovide a novel hectograph duplicating machine wherein the band ismoistened prior to use without interchanging the spindles or rewindingthe band.

Other objects are to provide spindle receiving devices at the front of ahectograph duplicating machine so that agelatin band roll may beexpeditiously mounted in the machine and to' provide atake-up spindle atthe rear of the machine onto which the band may be wound during themoistening operation and from which,

the-line 15-15 on Fig.

tion witha take-up spindle and which'will effect moisteni-ng of the bandas it is unwound from a spindle at the front of the machine and wound ona spindle at the rear of the machine; to" provide a rod which willuniformly guide the carriage during repetitious reciprocations thereofover the bed with minimum friction; and to provide a novel windingmechanism oper able-bya device spaced from the take-up spindle towindtheband in either direction over the bed. I

Selected embodiments of the invention are illustrated in theaccompanying drawings and therein Fig. 1- is a plan View of the machine;Fig. 2 is a front elevation; Fig. 3' is a detail view takensubstantially on the line 3-3 on Fig. 2; v Fig. 4 is a sectional detailview taken substantially on the line 4-4 on Fig. 3;

Fig. 5 is a fragmentary detail elevational view of" the portion of themachine illustrated in Figs. 3 and 4; Y Y Fig. 6 is an elev tion of theright hand side of themachine as viewed in Fig. 1, and in vwhich certainparts are broken away;

Fig; 7 is a sectional detail view taken substantially on theline 7-7 onFig. 6; Fig. 8 is asectional detail view taken substantially on the line88' on Fig. 6-; Fig. 9 is an elevationof the left hand side of themachine as viewed in Fig. 1;

Figs. 10 and 11 are elevational detail views of modified forms of theguide bar;

Figs. 12 and 13 areperspective detail views of still other modifiedforms of the guide bar;- Fig. 14 is a sectional detail view taken sub--stantially on the line 14-44 on-Fig. 9'and'showing the windingmechanism; Fig; 15' is a detail view taken substantially on; 14 andshowing thebrake 1 arrangement used in the machine;

Fig. 16 is a detail View takensubstantially on the line 16-16 on Fig.14; and

Fig. 17 is a detail view taken substantially on the line- 17-17 on Fig.14. In the drawings, 18 is the bed of a duplicating machine which ismounted between the side frame members 19 and 20. At the upper ends ofthe side members 19 and 20 are trackways' 21 and 22 and the carriageCincludes rollers 23 a uniform reciprocation of the carriage.

and .24 which are adapted to travel along said trackways when the platenroller R of the carriage is in upper or non-printing position. However,when the platen roller is moved into its lower or printing position, thecarriage travels thereon as the platen roller moves over the portion ofthe gelatin band B stretched over the bed 18.

described and claimed in my co-pending application, Serial No. 565,283,filed September 26, 1931. In order to insure uniform reciprocation ofthe carriage over the gelatin band B, a guide rod 25 is provided and thecarriage includes a depending portion 26 having bearings 27 and 28 whichtravel on the guide rod 25 andto insure Opposite ends of the guide. rod25 are mounteclin the outwardly extending end portions of the cradle 29,Figs. 6 and 8, and the outwardly extending end portions of the cradleare pivotally mounted as at 30 on outwardly extending foot portions onthe side frame member 19 so that the guide rod is supported for movementin a vertical plane. Fast to the cradle 29* substantially midway betweenthe ends thereof is a pin 31 which extends through an opening in theside frame member 19 and one end of a spring 32 is fast to this pin, theopposite end of the spring being I fast to the spring anchor 33 on theside frame member. This arrangement of the cradle supports the guide rod25 and the spring 32 acts to urge the guide rod upwardly. However, whenit is desired to move the carriage C from posi-v tion over the band B,it is pivoted on the bearings 27 and 28 aboutthe rod 25, and when thisis done the pin 31 engages the upper edge of the slot in the frame 19through which it is extended to limit downward movement of the rod 25.Such support for the guide rod is described in my referred to co-pendingapplication. To limit I reciprocation of the carriage C, arubber bumper34 is provided on the guide rod 25 adjacent the front end thereof I andthis rubber bumper is engaged by the bearing 28 to limitmovement of thecarriage C and to position it at the front end of the bed. To limitrearward movement of-the carriage C, I provide an adjustable stop whichconsists of a body 35 having a bore.36 therein in which there is a splitcollar 37 held against rotativemovement by the set screw 38. The collar37 embraces the guide rod 25 and a hand screw 39 is mountedin the body35 and bears against the split collar; 37 adjacent the split therein andby running the hand'screw 39 inwardly, the end of said screw engages thecollar and forces the ends adjacent the split in said collar toward eachother to thereby tightly clamp the body '35 in desired positions alongthe rod 25. body 35 on the guide rod 25 when the screw 39 is loosened,an angle strip 40 is mounted on the cradle29 and one limb thereofextends into a slot 41 in the side of the body 35. To effectively absorbthe shock incident to the engagement of the bearing 27 of thecarriagewith the stop provided by the body 35, I provide a rubber collar42 on the rod 25 protected by a flat metal'disc 43. As the carriagemoves rearwardly' the bearing 27 engages the disc 43 and the shock isabsorbed by the collar 42 and as the body 35 is at I this timetightly'clamped on the guide rod, this arrangement will stop thecarriage in an identical' position upon repetitious reciprocations. B iswound into aroll 44 on a The gelatin band A duplicating machineembodying a carriage adapted to operate in this manner is To preventturning of the spindle 53 of the kind, for example, disclosed in thereissued patent to Edward E. McNally, Re-

issue No. 18,448, May 3, 1932. A spindle of this kind has a journal pin45 at the end thereof and this pin is adapted to be mounted in thehorizontal slot 46 in the frame member 19. At. the inner end of the slot46 is a vertically extending slot 47. A plate is fast on the inside ofthe side frame member 19 and has a round socket 51 in the forward edgethereof. When the journal pin 45 is in the horizontal slot 46 theperiphcry of spindle 53 rests in pocket 51' and retains the pin 45 insaid slot. Pivotally mounted at 48' on the side frame member 19 is aplate 49having a pocket 50 therein. The plate 49 is adapted to bepivoted into theposition illustrated inFigs. 3 and 6 Whereat the pocket50 embraces the end of the journal 45 to thereby prevent displacement ofthe journal pin from the horizontal slot 46. A pin 51 on the plate 48projects through an opening 52 in the side frame 19 and serves to limitthe pivoting movement of the plate 49. The portions of the plate 49adjacent the recess 50 are inclined toward said recess 50. As a roll isbeing mounted in the machine, the journal 45 is slid along the inclinedportion to thereby be guided into the slot 46 50, this arrangementfacilitating the Whenv and recess installation and removal of thespindle; the journal 45 is held in the horizontal slot 46, the band Bevenly and uniformly winds onto spindle 53. However, if for any reasonthe journal .45 is not retained in the slot 46 butgmoves over the slot47, the spindle. 53 is wedged and therefore is, held against rotation.Thus, the winding of the band is interrupted and this insures that theband will be evenly and uniformly.

wound. The other end of thespindle 53 is detachablyconnected to'a clutchmember 54 journaled in a disc 55 fast to the side frame member 20. Ashaft 56 is journaled in the clutch member '54 in a bearing 58 in thehousing 59. A clutch member 57 is mounted on shaft 56 in opposition tothe clutch member 54. A hand wheel 60 is fast on the shaft 56 exteriorlyof the housing 59. Slidably mounted on the shaft 56 intermediate theclutch members 54 and 57 is a weighted shiftable clutch member 61 havinga diagonal slot 62 therein and a pin 63 fast in the shaft 56 extendsinto this wheel 60 is operated to rotate the shaft 56 in one direction,the action of the pin 63 in the slot 62 moves the shiftable clutchmember 61 into engagement with the clutch member 54 whereby the spindle53 is rotated to wind the band into the roll 44. 60 is turned to rotatethe shaft 56 in the opposite direction, the pin 63 moves through theslot 62 and moves the clutch member 61 from engagee mentwith the clutchmember 54 into engagement with the clutch member 57. At the rear end ofthe machine is a permanently but rotatably mounted take-up spindle Thaving a shaft 65 connected thereto. The shaft 65 is journaled inbearings in the housing 66 and within the housing 66 a bevel gear 67 isfast on the shaft 65. A shaft 68 is journaled in the housing 66 and fastthereon is a bevel gear 69 which meshes with the bevel gear 67. A shaft70 is journaled in the housing 59 and extends along the outside oftheside frame member 20 in axial alignment with the shaft 68. In the endof the shaft 68 is a socket 71 and a projection 72 on the end of theshaft 70 extends into the socket '71 to provide a flexible connectionbetween the shafts68 slot. When, the hand When the hand. wheel the endof thefgelatinband to thezwtake-up-l spindle. 'I; To arrange themaehineior: use," a' gelatin band roll is; mounted attthefmntofi the machine inthe. manner desoribedi andtheend of the band. is directed across. thebed-1 8: connected to. the,- take-up spindle *T. The hand Wheel is. thentu'iinedin a' direction to cause interengagement. of .the clutch members61 {and 5'7. and: as. the hand wheel 60- is rotated, thegela" tin bandis Withdrawn iromthe spindle 53 and wound; onto the take-.uo'spin'dl e.As the; gelatin bandis wound onto the take-up:spindl'e, amen;

tening device to be described operates-tomoisten the band and tocondition it for use and when all the band.- hasxbeenwoun'd from thespindle 53' onto. the take-up;- spindle and' pastthe moisteni-ng device'so." th'atthe gelatinous surface thereof has been: thoroughlymoistened;it"i'sready for use. Thei take up spindle is permanently. mounted in themachine and the-distributing roll of the mois'tening device is one: wisepermanently mounted. It is-thereforepos sible to align the axes of thespindle and'thef roll whereby uniform distribution of moisture over theband isinsured. If,the -takemp spindle was. loosely mounted inthemachine, the axial: alignment between this spindleand theperiphery. ofthe distributing roll might vary" and under such conditions thecontact"ot'theyband with the distributing roll: would netbs uniform;and;

an even application of moisture to -'the' loahd' would not result.Therefore, when all of the 0. band has been woundonto the t'ahe upspindle moisture will be un formly applied- 'theretoand;

as stated; it is ready-ion use. f'flhe hand wheel 60 is then turned.inJ-the opposite direction whereby the clutch: member 61 engages theclutch member 54 andcontinued rotation 01" the hand wheet in thisdirection' rotates the spindle 53 and: the gelatin band iswound-thereon. The geiatin banot is wound ontothe spindl'ew inastep-b'y-step= manner: in the operation of the ma 7 chineWherelmsuccessive portions of the-band" ar'e'arranged' oil-er thebed 1-8-"toprovide'a-r-iimpr'ession surtana' When the band: isstretched: over thebed toprovide an impression surface, it is drawn taut and to thisendthefolloWi-ngj d'e' vices are provided. In the: 55 is a slot-" whichopens into the bore in the disc in whichthe clutch member 5'4 isjourhaled; One end of" the slot '15 is Wider than the othr-*end arisroller '76 is held iri-thel'arger 'endfifthe slot v mounted at'lQ.o-nthe side "frame member 20.; Pivotally by afinger 77: on the rocker'78: pivotally mounted in the'si'de frame'memben 20 is a'rotatablemember 80 having anarm=831 thereon-nor mally held in engagement withastop 'pin 32 -bya spring 83. The end (lithe-rocker 80' opposite thefinger portion 77 bears against the lower side of the 'arm 8 l and in;this-waythLi'oIIerTG- is held in the largerportionof the 'slot75However, whenthe arm '81 is moved-'ninety-degrees into. engagement withtl-ie' stopj84i said.- arm isxdisensaged: from: the'rooken 7.8: and whenthe clutch member 54 is. rotated it. acts-onthe roller.

'filisandas thebrecker Z8 is free. the finger portion '17;- isi-forceddownwardly When. the roller 7.61

moi fes'i-intozrthe. narrower." portion of the slot'lfi', the.-clutchmember T45 is wedged against rotation and ihrthis'l'waythe spindle53: is held against rotative movement. Fast on the shaft 6,5. '-is a1disc'.i85a.:surro11nded by a. brake-band; 85xhavingspeeedihigsffi'iand88' thereon. The disc; 85. and

brakes band .86 axe. enclosed in 'a'. housing v89.

having lugsizim therein- .Anann 91 pivotally mounted :at. 92 extends.through an open endin thehousing .89'iend rests: on. the lug 8.7. Whenthearm 8 .1! on'the' member" 80'v is. in engagement with the pin 82,there 'isbiit'. light. pressureime pressed; upon the spring 83: which isconnected to. arm 91:: When, however, the arm St is turned seeingsoacts:on the. arm. 91" that the end thereof engaging: the lug 851' serves tovforce this lug to-- waindthe lug-:88: whieh will be engaging one" of:

thelugsl'QO and the. movement-10f the. lug 87 towardlthe lug 88. appliesa:.br'ake on the ,shaft fifipiwherebyirithei takei-up...spindle. T'isseeuted against rotation. A handlei93' is provided" on the; member SOonthe outerside: of the side Emma-"member j'20jand: manipulation or thishandle. secures. both. spindles against. rotation wherebyafter the bandis stretched taut across; the: means (it? .lis. secured in this gtautcondition-ii;

Thesmoistening: device. previously referred: to is showhuihFigszzZ and(Sand consists: of a tank- I 525:

Qemwnwe atzthe rear of the, machine and in a: pick-up roller" 95. is'journaled. A. bell eranh'ilever llfi ismounted; on the shaft 9.7- whichcarriesfthe. roller. 95 Ons thisshaftsare arms 98; including bizturcatedportions inwhich trun nionslfio .011 ai roller .101 are mounted. A leaf.spring :l02' i's connectedto thewsham-9 and; the tank 9A2. and urges.the] parts into the position illustnatedinl iga GiFOne end 'ot a ban103: is: connected an arm I04 on the member 105 pivotallymountedi'inthe=. side. frame member" mend-having aiii handle I065thereon. in the other end of the bar 103 isa. which apin 108% on onearm' of the-bell crank lever 96; extended. A weightlOS) is supported by:the. other arm of the bell crank lever 96: and an; arm .at'. the Tetherend of the machine. tunningthe handle 106-; the ban-10$: may be:

moved to engage the end isrot'ated and the roller 1 01: rolls overthe-roller 95; int-Ola position'whereat it engages the tionlof the bandwound upon the take-up spindle '1. The-weight 1'09 serves'to holdtheroll'er in this position. The tank" 94 is fill'ed with water and asthe band-Bis wound upon'the'take-up' spih'dle'f, water picked: up by theroller-95 is appliedt'on the roll 101 which, in turn, applies thewaterto the band- B as it is wound" upon the spindle T: "A cock 110 is]provided for draining the water from: the tank- 94. f

of the slotf'10 '7 with the pin .108 whereuponthe bell crank lever 9'6into the. dotted-line position of .Fig. 15,)? the sptingKBBI is.tensioned and'this tensioning oi the.

Slot 107 through;

. 'Therca-rri'age arrangement provided is one wlierein: the platenroller travels: on the gelatin band and lifts the wheels onthe-carriageclear of the traekways and very-little load is impressed onthe guide r0d 25.; The-chief utility of this.

guide'rodis to afforda center about whioh'the carriage can be pivotedwhen it is moved from position over the band. It is therefore importantthat the friction of the guide rod be'refl duced to a; minimum. To thisend the guide v ings 27 and 28 by providing axial slots 124 (Fig. 6)-inthese bearings. y p

In' the foregoing description I have described a duplicating machinewherein the gelatin band 60- rod illustrated in Fig.6 consists of acircular bar on the periphery of which there is a screw thread i 111,the face of which is flat to afford suflicient bearing surfaces. Thehearings on the carriage and the member 35 arepreferablyofsufficientlength to embrace about three threadsfof the screw thread 111 to therebyailord suflicient bearing surface. At the same time this screw threadarrangement greatly reducesthe contact area of the screw thread and inthis. way friction is 'kept at a minimum; In Fig. .10 .anotherarrangement for reducing thefriction of the guide rod is illustratedandherein a guide rod 1121s shown which is. preferably formed from asquare rod twisted so that the .corners thereof extend similarly to ascrew thread.

These corners are, flattened as at 113 to provide bearing surfaces.@InFig. -11 aguide rod 114 is illustrated which is turned .to form:rings 115,

thereon with grooves 116 intermediate. the rings and in the illustratedarrangement the grooves and rings are of equal size whereby a materiallyreduced area is providedfor contact with.the bearings. 'In' Fig. 13 2.rod 117 is illustrated which is'axially fluted as at 118 tovprovide fourreduced bearing. surfaces 119 and the bearings travel on thebearingsurfaces 119 which represent. but, a small portion oftheperipheryof the bar. 117. In Fig. 12,. a rod .120 is "illustratedwhich has rings 121 therein similar to the'rings.

115, and these rings are .fiuted. at. 122, these flutes being similar tothe flutes 118. This arrangement combines the advantages of the bars 114and 117 and very restricted bearing portions 123 are defined The barsillustratediin Figs. 6, 10,11 and 13 all-.have relieved portions'and anyforeign-matter suchas dirt will collect in these relieved portions andin this waywear on the guide rod is-reduced for if foreign" mattercollects on the bearing portions, of the ,rod .it is, scraped therefromby the, bearings on the .car-

riage to'be collected in the relieved portions and in this way'the rodis self-cleaning. Additional elimination of friction maybe attained byrelieving a portion of the bearing surface of .the bearroll.is mountedatthe front of the machine. This gelatin bandis qthen wound from thesupply to a take-up spindle at the rear of. the machine and during thisoperation the band is C0!ld lt1OI1Bd:f0I' use by .being moistenedp Afterthe band has been wound on this take-up spindle, it may then bestretched acrossthe bed of the duplicating 'machinetobe rewound onto thesupply roll spindle and it. is wound in a i step-by-step manner ontothis, spindle so that successive portions thereof arearranged inposition to provide an impression surface. The

winding of the band is accomplished by thesame handle and an arrangementis provided for connecting either of the tion. Moreover, a brakearrangementis provided for applying tension on the spindles to hold theband in taut condition in the extent thereof over the bed. Thearrangement which permits the gelatin band roll to bemounted at thefront of the machine embodies many advantages. It not only eliminates arewinding of the gelatin band 7 or removal and interchange of thespindles but I italso permits facile installation of the spindle. It ismuch easier to mount the spindle at the rolls to the winding devices 1so that the band may be wound in either direcfront 701' the machinewhere everything is accessible 'thanitiis to. lean over the machine toinstall a spindle at the rear end thereof. By providing' a. permanently.and rotatablyzlmounted take-up spindle at the. rear of the machine andby arranging thespindle atthe front of the machine so that it can beremoved, the advantages accruing from the manner in which the .band iswound are quite marked. The band is first stretchediacrossv the bed andthen is loosely wound onto the'take-up' spindle and when it is.

moistened.duringthisoperation the. moisture is not squeezed therefromand furthermore when the band has been used it is rewound back onto theremovable spindle which may then beremoved from the'machine, placed inv.the rack,

and; another spindle may be arranged in' the machine ,on ..,which'another" gelatin band is wound so that operation'of; the machine may becontinued; I have also shown: :a construction for the guide rodwhich.,will .materially reduce the friction incident-to thereciprocation of the hearings on the carriage therealong and this ismanifestly. a, marked advantage. Furthermore, the guide rod is oftheself-cleaning, type and therefore wear due to grit :and thelikeycollect ing on the guide rodiseliminated, since this grit. isscraped from the. bearing portions on'the. car-..

riage. The. machine also-includesj-an,arrangement which insures; evenand'uniform winding of the-gelatin band on 1 the removable spindle, for

when the spindle moves outiof properalignment, which.would causepunevenwinding; it becomes wedged andcannot beagain rotated until it isproperlyaligned. J v While I have illustrated :and described .selectedembodiments of understood that these are capable ofvariation andmodification and ;I thereforegdo not wish to be limitedto the precisedetailsuset, forth but desire to avail myself of "such changes andalterations as fall within the purview ofthe following claims Iclaim: I,

M n 1. In a duplicating machine, bed, means for mounting a gelatinbandroll at one'end of the bed a take-up spindle at the other end of the.

bed on which said gelatin ha I nd maybe wound, and a moistening deviceassociated with said takeup spindle and including a water ,pan, a rollerhaving a portionpof the periphery thereof immersed in water in said pan,supporting means for said rollergmeans for moving said supporting meansto move said I roller into engagement. with the gelatin band-wound onsaid take-up spindle,

and means for maintaining said roller in ensaid take-up.

gagement with the band wound on spindle as the diameter :of the 101101band on said spindle varies. q 1

2. In a duplicatingmachine; a bed,.means at one end of said bed adaptedto;-remova bly rec iv e a spindle, a gelatin band wound on said spindle,a take-up spindle permanentlyand r0- tatably mounted at the other end ofsaid bed whereby the gelatin band may be stretched across said bed fromsaid "removable spindle and secured to said winding said band spindle, amoistening device adjacent said'take+- up spindle and including a waterpan, a roller, means supporting said roller whereby a portion of theperiphery ofsaid roll er may tal-:eup spindle, means for in water insaidipan, meansfor moving the supporting means for said roller tomovesaid roller into engagement with the band wound, on said to or from saidtake-up be immersedmy invention, it istoj be take-up'spindle, and meansfor maintaining said roller in engagement with the band wound on saidtake-up spindle as the diameter of the roll of band on said spindlevaries. i

3. In a duplicating machine, a frame, a "bed mounted on said frame, awinding device mounted on said frame and includinga portion arranged atthe front-end of said frame, journal means in said frame in alignmentwith saidportion of said winding means whereby oneiendof a spindle maybe releasably connected to one portion of said winding means and theother end thereof may beremovably :mounted in said journal means,bearings at the rear .end of said frame, a take-up spindle journalediinsaid :bearings, and means directly connecting said wind.- ing. means tosaid take-up spindle whereby when a gelatin ban'dwound on saidfirst-named spindle is directed across said bed and connected :to saidtake-up spindle :the winding means maybe operated to wind said band ontoor from said take-up spindle.

4. In a duplicating machine, :a frame, a bed mounted on said frame, awinding adevice mounted on-said frame and including n sportion arrangedat the frontv end of 'said frame, jour? nal means in said :frame. inalignment with said portion of said winding means whereby of a supplyspindle may be releasably connected tozone portion of .said windingmeans and the other end thereof may be removably mounted in saidjournalmeans, bearings at the rear-end ,of said frame, a shaft journaledin said bearings, a take-up spindle fastv on said shaft, means directlyconnecting said winding :means to said shaft whereby when t a gelatin:band wound on said supply spindle :is directed. across said bedlandconnected to said take-up spindle the winding means maybe operated towind said band onto or from said take-up spindle, and means for holding.said supply spindle and said take-up spindle against rotation wherebythe portion of said band stretched, across said ibed may be held in tautcondition di -provide an impression surface. s.

5.111 .a duplicating machinaaa frame, abed mounted on said frame, a,windin device mounted on said frame andincluding a portion arranged--at the front end of said framegsaid frame having a slot therein at thefront end thereof and aligned with said portion \nofgsaid winding meanswhereby one end of, a spindle may be releasably connected to saidportion of said winding means and the other end of said spindle may bejournaled in said slot, meansvfor guiding a spindle into said slot andfor preventing displacement .of the spindle zf-rom said slot, a take-upspindle, and means connecting said winding means to said take-up spindlewhereby agelatin band wound on said first-namedspin dle may be directedacross said bed to said takeup spindle to be wound onto or from saidtakeup spindle upon operation of said winding means. v 6. In aduplicating machine, a frame, a-bed mounted on said frame, a windingdevice mounted on said frame and including a portion arranged at the'front .end of said frame; said frame having a slot thereinwat171.1%";f1011fii'611d thereof and aligned w'th said portionl-of saidwinding means whereby one end of aspindle may be releasably connected tosaidporti n of said winding means andthe other end of said spindle mayhe journaled in-said slot, means for preventing displacement @of thespindle from said slot, a take-up spindle, means connecting said windingmeans to said :take-up spindle whereby a gelatin 'bandwound on.saidrfirstnamed spindle may be directed across said bed to said take-upspindle to be wound onto or fromv said take-up spindle upon-operation ofsaid windingv means, and a moistening device adjacent 1 said take-upspindle. and engageable with the. band wound thereon ito condition saidband for use. y L.'

'7. Ina duplicating machine, a bed, a take-up roll atxthe rear :end ofsaid bed, .and means for releasably :mounting the spindle of agelatinband roll at the front end of said :bed and including a slot atmonesidefof the machine adaptedtoreceivejournal on the spindle, and meansfor guiding the journal into said slotand for releasablyiiolding :saidjournal in said slot.

:8. In a duplicating machine, means ,for re-'- leasably supporting oneend'of a spindle, 'means forremovably journaling the other. end .of saidspindle, amember cooperating :with the :periphcry of saidspindle :toposltion'ythe same said iournaling .means, and means .for guiding thejournal into said slot and for preventing .dis-' placement of saidspindle from (said journaling means." x f 9. In a duplicating machine,azbed, .a takeezup spindle permanently andbrotatably mounted at therear'end of said bed, andmeans -forreleasably m un in Jth sp nd of aelatin band roll at-the front end of saidbed and including portions inwhich said spindlewill wedge when said spindle is. n aligned with saidtake-up spindle to cause the gelatin :band to evenly and unifor l Wind,on t r ea a ly mount d s n le y 10. I a d p i n machine, a bed, a takeuproll-at the rear end of saidbed, means forgel sab y mou eth sp f a latiniband roll at the front end ofv said bed and a slot at one side of ing.a horizontally extending n a vertically extending journal on thespindle may horizontally extending port-ion of said slot to. be mounted:in themachine so thatwthe gelatin band will uniformly and evenly windthereupon, and means for releasably retaining ithe journal on saidspindleu'in the horizontally extending portion of saidslot, the journalon said spindle being adapted-to move into the-vertically exporti nterminating portion whereby a tending po'rtion of said-slot to wedgeltherein'to prevent winding of the band thereupon whereby the band willbe prevented from being wound in a uniform and,

on the spindle other than :evenmanner.

11. In a duplicating machine 'which has'a bed,

a take- -uproll at the r'earend 0f the bed, means forreleasably'mountin'g the-spindle of a gelatin band roll- -at'-thefrontof the bedwhereby a gelatin band may be withdrawn 'from saidspindle and directed across said 'b edto' said take-up roll sothat theportion thereof stretched across the machine and .-in .=ludbe arrangedin :the

ear-lugs on said carriage .andadapted tog-move I along said guide rod toinsure uniform move,-

inent of the carriage over sald' bednpon repetitious. operationsthereof, said guide rod having relieved "portions providing restrictedbearing surfaces whereby the friction between, the bearingson saidcarriage. and said guide rod is reduced; 1 l

12.In a duplicating machine, abed having a'gelatin band. stretchedthereover ,to provide an impression surface, a carriage reciprocalaoversaid .bed and adapted to apply sheets to said impression surface to takeimpressions therefrom, .a guide rod in said machine, bearings on saidcarriage adapted to slide along said guide rod to insure-uniformreciprocation of said carriage overvsaid impression surface uponrepetitious operations thereofysaid guide ,rod having relievedportionsin the periphery thereof where- .by. restricted bearing surfaces areprovided .thereon solthat the surface contact between said bearings andsaid bearing surfaces is reduced to thereby reduce the friction incidenttomove- .ment of said bearings along said guide rod, and

Y means for supporting said guide rod for floating 'ria'ge therealong.

' movement to 'fu'rther'reduce friction incidental tothe reciprocationof thebearings on the carl :13; In a duplicating machine, a bed having agelatin band stretched thereover to provide an impression surface, acarriage reciprocal over said bed and adapted toapply sheets to saidimpression surface to take impressions therefrom, a guide rod in saidmachine, hearings on 'said carriage adapted to slide along said guiderod" to insure uniform reciprocation of said carriage oversaid'impression surface upon repetitious operations thereof, said'guiderod having a screw thread on the periphery thereof flattened to providebearing'surfaces whereby the surface contact between said bearings andsaid guide rod is "reduced to thereby reduce thefriction incident to thereciprocation of said bearings along said guide rod toaminimum andmeansffor supporting said guide rodfor floatingmovement' to furtherreduce friction incidental tothe reciprocation of the hearings on thecarriage there along? I p l 14'. In a duplicating machine, a bed havinga gelatin bandstretchedjthereoverto provide an impression "surface, acarriage reciprocal over said bedand. adapted to apply-sheets to saidimpression surface. to take impressions .therefrom, a,guide.rodin saidmachine, and bearings on said carriage adapted to slide along said guiderod to insure uniform said carriage over said impression surface uponrepetitious operations, thereof, said guide rod having alternate ringsand grooves oflsubstantially equal size formed in the periphery thereofto reduce the peripheral area of said guide rod to reduce the contactbetween said bearings and said guide rod whereby the friction incidentto the reciprocation of-said carriage along said guide rod is reduced. r

15. In a duplicating machine, a bed having a gelatin band-stretchedthereover to provide an impression surface, a carriage reciprocal oversaid bed and adapted to apply sheets to said impression surface to takeimpressions therefrom,- a guide-rod, in'said machine, bearings on saidcarriage adapted to slide along said guide rod to'insure uniformreciprocation of said carriage over said impression surface uponrepetitious operations thereof,'said guide rod having axially extendingflutes 'therein providing restricted bearingsurfaces'at spaced points onsaid guide red, the bearings onsaid carriage contacting reciprocation of11,988,272 p I V V with said restricted bearing surfaces so tliatthefriction incident vto the reciprocation 'ofsaid bearings along saidguide rod is reduced, and means for supporting said guide rod forfloating movement to furtherreduce'friction incidental to reciprocationof the bearings on the carriage therealong. a

16. In apduplicating machine, a bed having stantially equalsizethereinand: having axially extending flutes extending through said ringswhereby materially reduced bearingv surfaces,

are formed on the periphery of said rod, the bearings on said carriageengaging said .restricted bearing surfaces to thereby reduce .thefriction incident to :the reciprocation of said bearings along saidguide rod.v 1 V 7 1'7. Ina duplicating'machine, a bedhaving'a gelatinbandstretched thereover to provide an impression surface, a carriagereciprocal over said bed and adapted to apply sheets'to'said im pressionsurface to'take impressions therefrom,

a guide rod in saidmachine, bearings on said,

carriage adapted'toslide along said guide rod to insure uniformreciprocation of said carriage over said impression surface uponrepetitious operations thereof, said guide rod having reduced portionsin the periphery to reduce the peripheral'area thereoil andsaid bearingshaving relieved portions therein to reduce the area thereof contactingwith the periphery of said guide rod whereby'friction incident to thereciprocation of said bearings along said guide rod is reduced,

18. In a" duplicating machine which has a moistening device including -aroller engage'able with the gelatinous band of the duplicating-ma chineduring the winding of the band, "a bed, a-

drum permanently and I rotatably mounted in said machine at 'therearend" of said bed and in parallel relation with' the'roller or themoistening device, said drum having connecting means onthe peripherythereof and providing a take-up spindle, and means at the front end; ofsaid bed to removably supportfa spindle having a gelatin band woundthereon for rotatable movement and including means for guiding t'espindle into a winding position wherebya gelatin band wound on saidspindle may be withdrawn from the spindle and stretched across said {bedand attached to the connecting means on said .b isa whereby the-band;may-be moistened, roller as it isqwound onthe drum. 7

-19. In' a duplicating machine which has a moistening device includinga'rollerengageable with the gelatinous band of the duplicating ma chineduring the winding of' the band, a "frame includin'g'side members, a bedmounted on said framejbearings'in said side members adjacent the rearendof said frame, a take-up spindle having "journals thereon permanentlyand rotatably mounted insaidbearings to support said take-up spindle inparallel relation with the roll-' er of the moistening device, means in'said side members for removably supporting a gelatin band spindle -atthefront end of said; frame wherebya spindle having a gelatin band wound1,988,272 I v '7 I thereon may be removably mounted at the frontspindle, and means including an operating deend of said frame and theband may be with vice spaced from said take-up spindle for rotatdrawntherefrom and directed across said bed, ing said take-up spindle to windsaid band theremeans on said take-up spindle for detachably on' wherebythe band may be. moistened by said connecting said band to said take-upspindle to roller as it is wound on said take-up spindle. 5

facilitate winding of said band on said take-up JOHN J. FLANIGAN.

